5 Optics and lenses
An outline knowledge of relevant optical theory and types of lenses is useful in all scientific applications of photography. Fuller information is given in textbooks such as those by Bass (1995). Blackwell and Thornton (1996), Horne (1980), Jenkins and White (1981), Kingslake (1978, 1992), Ray (1992, 1994a, 1994b), Smith (1990, 1992) and Walker (1994).
5.1 Photographic optics
5.1.1 Optical theory
Optics is the study of the behaviour of light and its interactions with materials. Energy as electromagnetic radiation (EMR) is produced by thermal and other sources and travels as rays in straight lines, termed rectilinear propagation, at a constant velocity (v) in a homogeneous medium and can be considered behaving either as a sinusoidal ...
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